Michael Cairns flew a National Guard helicopter on a rescue and recovery mission to Mount St. Helens. His book, "Under the Ash," recounts it all 45 years later — and in harrowing detail. Read more: https://www.kgw.com/article/news/local/the-story/mount-st-helens-rescue-pilot-photo-book-under-the-ash-michael-cairns/283-826070ac-7b34-4e8b-b3d8-5f58a5f62835 Watch more The Story videos: http://bit.ly/watchTheStory Follow The Story on Twitter: https://twitter.com/TheStoryKGW Follow The Story on Instagram: https://instagram.com/thestorykgw